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test pipe exhaust sound

Discussion in 'General Tech and Maintenance' started by ericL, Aug 12, 2005.

  1. ericL

    ericL Senior Member

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    Ok i just got a EG with a B16A and it has i/h/e. The exhaust is an apexi N1 cat back. It currently has a test pipe not a cat...the exhaust is not only loud (which is not that bad) but it's high pitched/raspy/ricer style...my question is will a test pipe kill the deeper sound like that? If so that test pipe is getting chopped up and made into flanges for a hi-flo cat :p ..
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    yep a test pipe will give you a more rhaspy sound

    get a good high flow cat it will quiet things down a bit and take out a lot of the rhaspyness
     
  3. ericL

    ericL Senior Member

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    sweet...cuz most DOHC motors that i've driven have been a lot deeper so this was a bit of a suprise..
     
  4. phyregod

    phyregod !!YTINASNI

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    A high flow cat will help alot, also, look into a resonator! Those help ALOT with the raspy crap.
     
  5. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    :werd:

    Drop in the longest resonator you can- it'll really quiet things down.
     
  6. ericL

    ericL Senior Member

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    Now with the cat, I'm looking at a carsound/magnaflo cat with no flanges. I have a buddy who welds so that's not a problem. I was going to use the flanges from the test pipe but they're rusted to shit and pretty beat up. So where can i get flanges for the cat?
     
  7. phyregod

    phyregod !!YTINASNI

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    Nearest muffler shop.. Chop em off of a used cat, every muffler shop has 3 billion old mufflers and cats laying out back.. I'm sure they'd let you have em, or sell em to you for like 5 bucks or something.
     
  8. adnoh

    adnoh Senior Member

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    bah...skrew the cat if you can get away with it.....unless you're an environmentalist. Resonators are where it's at. I've been running a test pipe on my Magnaflow for some time now and my exhaust note is deeper than most, and not obnoxious at low rpm's. But I have a nice long, polished stainless resonator.

    You free up horsepower using the test pipe, and you'll get slightly better gas milage. But it's not doing anything good for the ozone.
     
  9. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    :bs:

    maybe vs a stock cat... but not vs a decent high flow

    and the smell coming off a car without a cat is GREAT too :puke:
     
  10. 92civicb18b1

    92civicb18b1 The Trisexual

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    With my LS-T, open DP it wasn't terribly loud and really didn't stink that bad either.

    I'm keeping myself from modding the Audi or I would have defenitly chopped the all of the cats out and replaced them with resonators.
     
  11. K2e2vin

    K2e2vin Senior Member

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    i got a friend with a Apexi N1; with cat and engine is a JDM GSR but no resonator; its still raspy as hell. im running a header-back with no cat, and a magnaflow-imitation muffler(also no resonator) and its deeper than how my friend's Apexi sounds, so some of the raspiness might be coming from the actual muffler also.

    :werd: it does stink, and a test pipe does kill your mileage in most cases(im around 25-30mpg on a D15B).
     
  12. xj0hnx

    xj0hnx I wanna be sedated VIP

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    The smell from gutting a cat, and switching to a test pipe is different. Gutting will have a nausous smell too it, replacing with a TP will have a heavy burnt fuel smell, both aren't nice.

    Kev, yea, the difference in interenal designs plays a great part in teh sound of a muffler, not just the volume. A company here named Remus makes an exhaust that can make a D series sound like a V6, had one on one of my rexs, and it was the best sounding muffler I have heard.
     
  13. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    ive seen a few remus exhausts on VWs.... the sound is fucking sexy :wub:
    if i end up getting a BMW or an Audi i will be putting a remus exhaust on it
     
  14. 92civicb18b1

    92civicb18b1 The Trisexual

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    yes, REMUS has some sick exhaust systems.

    They don't make one for my 96 and it's like $300 a muffler.
     
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